16. He’ll remember the days ____ he spent with his pupils.

　 　A. /　　　　　 B. where　　　　 C. what　　　　 D. in which

15. The mice built tunnels ____ they can get rice in the fields.

　 A. which　　　 B. on which　 C. by which　 D. through which

14. He has lost the key to the desk _____ the papers are kept.

　 A. which　　　 B. that　　　　 C. in which　　　 D. in that

13. Is this factory ____ you want to visit tomorrow?

　 A. which　　　 B. that　　　　 C. where　　　　 D. the one

12. Is this the hospital ____ you visited the other day?

　 A. which　　　 B. where　　　 C. in which　　　 D. at which

11. Pass me the book ___ cover is red.　

　 A. which　　　 B. whose　　　 C. what　　　　　 D. that

10. Alice is the only one of the students in our school who ___

Australia ?

　 A. has gone to　 B. has been to　 C. have gone to　 D. have been to

9. In the old house, Tom washed the ten windows, most of ___ hadn’t

been cleaned for years.

　 A. these　　　 B. those　　　 C. that　　　　　　 D. which

8. He is one of the foreign experts who ____ Chinese.

　 A. knows　　　 B. know　　　 C. is known　　　 D. are known

7. It is you that ____ wrong.　　

　 A. is　　　　　 B. was　　　　 C. are　　　　　 D. has been